Sync on Edit strange behavior

I've tried several times the "Sync on Edit" options on my iPhone, but whenever I do, if I mark an item as "OK", if this item have repetitions (eg daily), instead of it disappearing from the screen, it continues appearing (but with the green "V " = OK) and there is another identical duplicate item, but without the "V " = OK. Only to exit this screen and return, the two items desappear (a behavior similar to "refresh" the screen). If this is a normal behavior of Toodledo, I prefer to do manual sync, as I have done.... Is there any way (in Settings, for example?) to get the OK to an item and have it disappear from the screen (even with repetitions on it), without requiring the additional "refresh"? Thank you, Eduardo